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51 lines
1.2 KiB
51 lines
1.2 KiB
from PyQt5.QtWidgets import QErrorMessage |
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from clusterview.mode import Mode |
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def handle_exceptions(func): |
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""" |
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A decorator designed to make exceptions thrown |
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from a function easier to handle. |
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The result will be that all exceptions coming from |
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the decorated function will be caught and displayed |
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as a error message box. |
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Usage: |
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@handle_exceptions |
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def my_qt_func(): |
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raises SomeException |
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""" |
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def wrapped(self, *args, **kwargs): |
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try: |
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return func(self, *args, **kwargs) |
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except Exception as e: |
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error_dialog = QErrorMessage() |
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error_dialog.showMessage(str(e)) |
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error_dialog.exec_() |
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return wrapped |
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class InvalidMode(Exception): |
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""" |
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An exception to specify an invalid mode has been provided. |
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""" |
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_exc = None |
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def __init__(self, mode): |
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""" |
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Initializes the InvalidMode exception with a |
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mode. |
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""" |
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if type(mode) != Mode: |
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raise ValueError("Mode argument to InvalidMode must be of "+ |
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" type mode") |
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# Mode cases for invalid mode |
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if mode == Mode.OFF: |
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super().__init__("You must select a mode before continuing.")
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